<template>
  <el-form ref="deptForm" :model="form" :rules="rules" label-width="120px">
    <el-form-item label="部门名称" prop="name">
      <el-input v-model="form.name" style="width:80%" placeholder="1-50个字符" />
    </el-form-item>
    <el-form-item label="部门编码" prop="code">
      <el-input v-model="form.code" style="width:80%" placeholder="1-50个字符" />
    </el-form-item>
    <el-form-item label="部门负责人" prop="manager">
      <el-select v-model="form.manager" style="width:80%" placeholder="请选择">
        <el-option
          v-for="item in employees"
          :key="item.id"
          :value="item.username"
          :label="item.username"
        />
      </el-select>
    </el-form-item>
    <el-form-item label="部门介绍" prop="introduce">
      <el-input v-model="form.introduce" style="width:80%" placeholder="1-300个字符" type="textarea" :rows="3" />
    </el-form-item>
    <el-form-item>
      <el-button type="primary" size="small" @click="hSubmit">确定</el-button>
      <el-button size="small" @click="hCancel">取消</el-button>
    </el-form-item>
  </el-form>
</template>

<script>
import { getEmployeesSimple } from '@/api/getEmployeesSimple'
import { addDepartments, getDepartmentDetail, updateDepartments } from '@/api/departments'
export default {
  props: {
    id: {
      type: String,
      required: true
    },
    isEdit: {
      type: Boolean,
      required: true
    },
    originList: {
      type: Array,
      required: true
    }
  },
  data() {
    const validName = (rule, value, callback) => {
      // 找到当前部门的所有子部门 ==> 得到被占用的列表
      let existNameList = this.originList.filter(item => item.pid === this.id).map(item => item.name)
      // 通过当前的id去找父级,得到父级之后,再找所有的儿子,他的兄弟,包括自己 ==> 减去自己
      if (this.isEdit) {
        const parentId = this.originList.find(item => item.id === this.id).pid
        existNameList = this.originList.filter(item => item.pid === parentId).filter(item => item.id !== this.id).map(item => item.name)
      }
      if (existNameList.includes(value)) {
        callback(new Error('此部门在同级部门下已存在!'))
      } else {
        callback()
      }
    }
    const validCode = (rule, value, callback) => {
      console.log(this.originList.map(item => item.code))
      let existList = this.originList.map(item => item.code)
      if (this.isEdit) {
        existList = this.originList.filter(item => item.id !== this.id).map(item => item.code)
      }
      if (existList.includes(value)) {
        callback(new Error('该部门编码已存在!'))
      } else {
        callback()
      }
    }
    return {
      form: {
        name: '', // 部门名称
        code: '', // 部门编码
        manager: '', // 部门负责人
        introduce: '' // 部门介绍
      },
      rules: {
        name: [
          { required: true, message: '部门名称不能为空', trigger: 'blur' },
          { min: 1, max: 50, message: '部门名称要求1-50个字符', trigger: 'blur' },
          { validator: validName, trigger: 'blur' }
        ],
        code: [
          { required: true, message: '部门编码不能为空', trigger: 'blur' },
          { min: 1, max: 50, message: '部门编码要求1-50个字符', trigger: 'blur' },
          { validator: validCode, trigger: 'blur' }
        ],
        manager: [
          { required: true, message: '部门负责人不能为空', trigger: 'blur' }
        ],
        introduce: [
          { required: true, message: '部门介绍不能为空', trigger: 'blur' },
          { min: 1, max: 300, message: '部门介绍要求1-300个字符', trigger: 'blur' }
        ]
      },
      employees: []
    }
  },
  created() {
    this.loadEmployeesSimple()
    if (this.isEdit) {
      this.loadDepartmentDetail()
    }
  },
  methods: {
    resetForm() {
      this.$refs.deptForm.resetFields()
    },
    async doEdit() {
      // 编辑部门
      try {
        // 修改部门
        const res = await updateDepartments(this.form)
        console.log(res, 'updateDepartments')
        this.$emit('success')
      } catch (error) {
        console.log(error)
      }
    },
    // 根据id查询指定的部门信息
    async loadDepartmentDetail() {
      if (this.isEdit) {
        try {
          const res = await getDepartmentDetail(this.id)
          console.log(res.data, 'getDepartmentDetail')
          this.form = res.data
        } catch (error) {
          console.log(error)
        }
      }
    },
    async doAdd() {
      try {
        const data = { pid: this.id, ...this.form }
        const res = await addDepartments(data)
        console.log(res)
        // 子向父
        this.$emit('success')
      } catch (error) {
        console.log(error, '错误原因')
      }
    },
    hSubmit() {
      this.$refs.deptForm.validate((valid) => {
        if (!valid) return
        this.isEdit ? this.doEdit() : this.doAdd()
      })
    },
    hCancel() {
      // 取消
      this.$emit('close')
    },
    async loadEmployeesSimple() {
      try {
        const { data: res } = await getEmployeesSimple()
        console.log(res)
        this.employees = res
      } catch (error) {
        console.log(error)
      }
    }
  }
}
</script>

<style>

</style>
